Rift was kicked out of the game

After playing five pieces, 4 of them were kicked out of the game. The game screen was stuck. I could only exit the game through alt+f4 and then enter the game door, and then they disappeared. There was also one piece that was completely finished, but I found that some monsters were dead and still had to be modeled. I was kicked out of the login interface when I returned to the city. The probability of occurrence is extremely high. Please note that this is a crack gameplay.